What's My Potential Estate Tax? This calculator helps estimate your federal estate tax liability. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content Comparing Mortgage Terms Estimate the total cost in today's dollars of various mortgage alternatives. How Much Home Can I Afford? With a few simple inputs you can estimate how much of a mortgage you may be able to obtain. Choosing a Retirement Plan that Fits Your Business To choose a plan, it’s important to ask yourself four key questions.